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a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=4JZlSiz+JY1dHgj+22zaOKvssBfFHl8ggVgLHnpAPlU=; b=6XBo5BA5LfedW4jVw3yEsXzCOOwxIyZY9YyVYydpOrkjjFhUxji1eSEtI4NWtxVSj01f9WuZjUg5eNzWwbfuUXwLa1tGrojlRnyvKQZY4aNSsMaIwACXIq5g+qvquw5DKl7cI31OBT7F9hzQcC7gNrN+bODZ921o8ncVdK2TB28= X-Mailman-Original-Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Lowry.Li@arm.com; X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ayan Halder , "Jonathan Chai \(Arm Technology China\)" , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "Julien Yin \(Arm Technology China\)" , nd Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: "Lowry Li (Arm Technology China)" Adds iommu_connect and disconnect for SMMU support, and configures TBU translation once SMMU has been attached to the display device. Signed-off-by: Lowry Li (Arm Technology China) --- .../gpu/drm/arm/display/komeda/d71/d71_component.c | 5 +++ drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c | 49 ++++++++++++++++++++++ drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 18 ++++++++ drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 7 ++++ .../drm/arm/display/komeda/komeda_framebuffer.c | 2 + .../drm/arm/display/komeda/komeda_framebuffer.h | 2 + 6 files changed, 83 insertions(+) diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c index 4e26a80..4a48dd6 100644 --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c @@ -215,6 +215,8 @@ static void d71_layer_update(struct komeda_component *c, malidp_write32(reg, LAYER_FMT, kfb->format_caps->hw_id); malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize, st->vsize)); + if (kfb->is_va) + ctrl |= L_TBU_EN; malidp_write32_mask(reg, BLK_CONTROL, ctrl_mask, ctrl); } @@ -348,6 +350,9 @@ static void d71_wb_layer_update(struct komeda_component *c, fb->pitches[i] & 0xFFFF); } + if (kfb->is_va) + ctrl |= LW_TBU_EN; + malidp_write32(reg, LAYER_FMT, kfb->format_caps->hw_id); malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize, st->vsize)); malidp_write32(reg, BLK_INPUT_ID0, to_d71_input_id(&state->inputs[0])); diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c index 8e682c7..1b9e734 100644 --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c @@ -517,6 +517,53 @@ static void d71_init_fmt_tbl(struct komeda_dev *mdev) table->n_formats = ARRAY_SIZE(d71_format_caps_table); } +static int d71_connect_iommu(struct komeda_dev *mdev) +{ + struct d71_dev *d71 = mdev->chip_data; + u32 __iomem *reg = d71->gcu_addr; + u32 check_bits = (d71->num_pipelines == 2) ? + GCU_STATUS_TCS0 | GCU_STATUS_TCS1 : GCU_STATUS_TCS0; + int i, ret; + + if (!d71->integrates_tbu) + return -1; + + malidp_write32_mask(reg, BLK_CONTROL, 0x7, TBU_CONNECT_MODE); + + ret = dp_wait_cond(has_bits(check_bits, malidp_read32(reg, BLK_STATUS)), + 100, 1000, 1000); + if (ret <= 0) { + DRM_ERROR("connect to TCU timeout!\n"); + malidp_write32_mask(reg, BLK_CONTROL, 0x7, INACTIVE_MODE); + return -ETIMEDOUT; + } + + for (i = 0; i < d71->num_pipelines; i++) + malidp_write32_mask(d71->pipes[i]->lpu_addr, LPU_TBU_CONTROL, + LPU_TBU_CTRL_TLBPEN, LPU_TBU_CTRL_TLBPEN); + return 0; +} + +static int d71_disconnect_iommu(struct komeda_dev *mdev) +{ + struct d71_dev *d71 = mdev->chip_data; + u32 __iomem *reg = d71->gcu_addr; + u32 check_bits = (d71->num_pipelines == 2) ? + GCU_STATUS_TCS0 | GCU_STATUS_TCS1 : GCU_STATUS_TCS0; + int ret; + + malidp_write32_mask(reg, BLK_CONTROL, 0x7, TBU_DISCONNECT_MODE); + + ret = dp_wait_cond(((malidp_read32(reg, BLK_STATUS) & check_bits) == 0), + 100, 1000, 1000); + if (ret < 0) { + DRM_ERROR("disconnect from TCU timeout!\n"); + malidp_write32_mask(reg, BLK_CONTROL, 0x7, INACTIVE_MODE); + } + + return ret; +} + static struct komeda_dev_funcs d71_chip_funcs = { .init_format_table = d71_init_fmt_tbl, .enum_resources = d71_enum_resources, @@ -527,6 +574,8 @@ static void d71_init_fmt_tbl(struct komeda_dev *mdev) .on_off_vblank = d71_on_off_vblank, .change_opmode = d71_change_opmode, .flush = d71_flush, + .connect_iommu = d71_connect_iommu, + .disconnect_iommu = d71_disconnect_iommu, }; struct komeda_dev_funcs * diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c index c92e161..e80e673 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c @@ -253,6 +253,19 @@ struct komeda_dev *komeda_dev_create(struct device *dev) dev->dma_parms = &mdev->dma_parms; dma_set_max_seg_size(dev, DMA_BIT_MASK(32)); + mdev->iommu = iommu_get_domain_for_dev(mdev->dev); + if (!mdev->iommu) + DRM_INFO("continue without IOMMU support!\n"); + + if (mdev->iommu && mdev->funcs->connect_iommu) { + err = mdev->funcs->connect_iommu(mdev); + if (err) { + mdev->iommu = NULL; + DRM_ERROR("connect iommu failed.\n"); + goto err_cleanup; + } + } + err = sysfs_create_group(&dev->kobj, &komeda_sysfs_attr_group); if (err) { DRM_ERROR("create sysfs group failed.\n"); @@ -282,6 +295,11 @@ void komeda_dev_destroy(struct komeda_dev *mdev) debugfs_remove_recursive(mdev->debugfs_root); #endif + if (mdev->iommu && mdev->funcs->disconnect_iommu) + if (mdev->funcs->disconnect_iommu(mdev)) + DRM_ERROR("disconnect iommu failed.\n"); + mdev->iommu = NULL; + for (i = 0; i < mdev->n_pipelines; i++) { komeda_pipeline_destroy(mdev, mdev->pipelines[i]); mdev->pipelines[i] = NULL; diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h index 83ace71..dac1eda 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h @@ -92,6 +92,10 @@ struct komeda_dev_funcs { int (*enum_resources)(struct komeda_dev *mdev); /** @cleanup: call to chip to cleanup komeda_dev->chip data */ void (*cleanup)(struct komeda_dev *mdev); + /** @connect_iommu: Optional, connect to external iommu */ + int (*connect_iommu)(struct komeda_dev *mdev); + /** @disconnect_iommu: Optional, disconnect to external iommu */ + int (*disconnect_iommu)(struct komeda_dev *mdev); /** * @irq_handler: * @@ -184,6 +188,9 @@ struct komeda_dev { */ void *chip_data; + /** @iommu: iommu domain */ + struct iommu_domain *iommu; + /** @debugfs_root: root directory of komeda debugfs */ struct dentry *debugfs_root; }; diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c index d5822a3..360ab70 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c @@ -201,6 +201,8 @@ struct drm_framebuffer * goto err_cleanup; } + kfb->is_va = mdev->iommu ? true : false; + return &kfb->base; err_cleanup: diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.h b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.h index 6cbb2f6..f4046e2 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.h +++ b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.h @@ -21,6 +21,8 @@ struct komeda_fb { * extends drm_format_info for komeda specific information */ const struct komeda_format_caps *format_caps; + /** @is_va: if smmu is enabled, it will be true */ + bool is_va; /** @aligned_w: aligned frame buffer width */ u32 aligned_w; /** @aligned_h: aligned frame buffer height */ From patchwork Thu Jun 6 09:53:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lowry Li (Arm Technology China)" X-Patchwork-Id: 10979095 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0B7C714E5 for ; Thu, 6 Jun 2019 09:53:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EFC8D1FE8E for ; Thu, 6 Jun 2019 09:53:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E3A0428765; Thu, 6 Jun 2019 09:53:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 978EA1FE8E for ; Thu, 6 Jun 2019 09:53:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C2C33897BC; Thu, 6 Jun 2019 09:53:14 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from EUR03-AM5-obe.outbound.protection.outlook.com (mail-eopbgr30053.outbound.protection.outlook.com [40.107.3.53]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7738A897BC for ; Thu, 6 Jun 2019 09:53:13 +0000 (UTC) Received: from VI1PR08MB5488.eurprd08.prod.outlook.com (52.133.246.150) by VI1PR08MB4285.eurprd08.prod.outlook.com (20.179.25.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1965.12; Thu, 6 Jun 2019 09:53:11 +0000 Received: from VI1PR08MB5488.eurprd08.prod.outlook.com ([fe80::e9f4:59c8:9be1:910b]) by VI1PR08MB5488.eurprd08.prod.outlook.com ([fe80::e9f4:59c8:9be1:910b%4]) with mapi id 15.20.1965.011; Thu, 6 Jun 2019 09:53:11 +0000 From: "Lowry Li (Arm Technology China)" To: Liviu Dudau , "james qian wang (Arm Technology China)" , "maarten.lankhorst@linux.intel.com" , "seanpaul@chromium.org" , "airlied@linux.ie" , Brian Starkey Subject: [PATCH v2 2/2] dt/bindings: drm/komeda: Adds SMMU support for D71 devicetree Thread-Topic: [PATCH v2 2/2] dt/bindings: drm/komeda: Adds SMMU support for D71 devicetree Thread-Index: AQHVHE2mr3BUk1ioOkWkaZ2sLFcnGg== Date: Thu, 6 Jun 2019 09:53:10 +0000 Message-ID: <1559814765-18455-3-git-send-email-lowry.li@arm.com> References: <1559814765-18455-1-git-send-email-lowry.li@arm.com> In-Reply-To: <1559814765-18455-1-git-send-email-lowry.li@arm.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [113.29.88.7] x-clientproxiedby: HK2PR02CA0169.apcprd02.prod.outlook.com (2603:1096:201:1f::29) To VI1PR08MB5488.eurprd08.prod.outlook.com (2603:10a6:803:137::22) x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 1.9.1 x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: d30e36e1-e296-497e-f49b-08d6ea64c8b9 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; 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a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=sl7Qn1204UQlhgDiKp2mJoeQ3g3KynzwhZ57SJ4CoGk=; b=E2f1NTSYmNcGOml52FsStZLXmYSixibRyJb+iCIF2BlAFjXCP97D7RaRje6gOaitTndKsQaL2vhTViI/Su7UXcCah+Zwh9kfLG6YkOb05bEaExeKB8qhyQoPBEHo+pmbBcxncKlHk+pnf615ITCaZ9iQH5mQQjvvyLrWezuPxT0= X-Mailman-Original-Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Lowry.Li@arm.com; X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ayan Halder , "Jonathan Chai \(Arm Technology China\)" , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "Julien Yin \(Arm Technology China\)" , nd Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Updates the device-tree doc about how to enable SMMU by devicetree. Signed-off-by: Lowry Li (Arm Technology China) Reviewed-by: Liviu Dudau Reviewed-by: James Qian Wang (Arm Technology China) --- Documentation/devicetree/bindings/display/arm,komeda.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/display/arm,komeda.txt b/Documentation/devicetree/bindings/display/arm,komeda.txt index 02b2265..b12c045 100644 --- a/Documentation/devicetree/bindings/display/arm,komeda.txt +++ b/Documentation/devicetree/bindings/display/arm,komeda.txt @@ -11,6 +11,10 @@ Required properties: - "pclk": for the APB interface clock - #address-cells: Must be 1 - #size-cells: Must be 0 +- iommus: configure the stream id to IOMMU, Must be configured if want to + enable iommu in display. for how to configure this node please reference + devicetree/bindings/iommu/arm,smmu-v3.txt, + devicetree/bindings/iommu/iommu.txt Required properties for sub-node: pipeline@nq Each device contains one or two pipeline sub-nodes (at least one), each @@ -44,6 +48,9 @@ Example: interrupts = <0 168 4>; clocks = <&dpu_mclk>, <&dpu_aclk>; clock-names = "mclk", "pclk"; + iommus = <&smmu 0>, <&smmu 1>, <&smmu 2>, <&smmu 3>, + <&smmu 4>, <&smmu 5>, <&smmu 6>, <&smmu 7>, + <&smmu 8>, <&smmu 9>; dp0_pipe0: pipeline@0 { clocks = <&fpgaosc2>, <&dpu_aclk>;